ARM: shmobile: Document DT bindings for Product Register
Add device tree binding documentation for the Product Register (PRR), which provides product and revision information on most Renesas ARM SoCs. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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@ -75,3 +75,21 @@ Boards:
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compatible = "renesas,silk", "renesas,r8a7794"
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- Wheat
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compatible = "renesas,wheat", "renesas,r8a7792"
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Most Renesas ARM SoCs have a Product Register that allows to retrieve SoC
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product and revision information. If present, a device node for this register
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should be added.
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Required properties:
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- compatible: Must be "renesas,prr".
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- reg: Base address and length of the register block.
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Examples
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--------
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prr: chipid@ff000044 {
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compatible = "renesas,prr";
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reg = <0 0xff000044 0 4>;
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};
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